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Quantum tunneling is a classically-forbidden quantum effect that allows a bound object with energy less than the boundary to penetrate it with a small probability. A notable example is $\alpha$-decay

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Quantum Mechanical Tunneling in a Resonant Tunneling Diode

I am currently trying to simulate a Resonant Tunneling Diode (RTD) on a somewhat basic level, so the question is rather general. Quantum-mechanically its structure is shown well in this figure: Two ba …
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